Point your browser to https://github.com/STAT-ATA-ASU
Find your repository
Click the Clone or download button
Clone with https - copy the address to the clipboard
Open the RStudio IDE
Click the New Project icon
Select New Project > Version Control > Git
Paste the information on the clipboard in the Repository URL box
In the Project directory name box paste the last bit of information on the clipboard without the *.git
In the Create project as a subdirectory of: box select where you want the repository to be stored.